42891737980 has 48 divisors (see below), whose sum is σ = 110858650560. Its totient is φ = 13574527488.

The previous prime is 42891737951. The next prime is 42891737989. The reversal of 42891737980 is 8973719824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42891737989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11781625 + ... + 11785264.

It is an arithmetic number, because the mean of its divisors is an integer number (2309555220).

Almost surely, 2^42891737980 is an apocalyptic number.

It is an amenable number.

42891737980 is an abundant number, since it is smaller than the sum of its proper divisors (67966912580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42891737980 is a wasteful number, since it uses less digits than its factorization.

42891737980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23566918 (or 23566916 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 58.

The spelling of 42891737980 in words is "forty-two billion, eight hundred ninety-one million, seven hundred thirty-seven thousand, nine hundred eighty".